FR597615A - Calculating device for instruction - Google Patents

Calculating device for instruction

Info

Publication number
FR597615A
FR597615A FR597615DA FR597615A FR 597615 A FR597615 A FR 597615A FR 597615D A FR597615D A FR 597615DA FR 597615 A FR597615 A FR 597615A
Authority
FR
France
Prior art keywords
instruction
calculating device
calculating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Hugo Von Roth
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR597615A publication Critical patent/FR597615A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00—Teaching not covered by other main groups of this subclass
    • G09B19/02—Counting; Calculating

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR597615D 1925-01-17 1925-01-17 Calculating device for instruction Expired FR597615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR597615T 1925-01-17

Publications (1)

Publication Number Publication Date
FR597615A true FR597615A (en) 1925-11-25

Family

ID=8968349

Family Applications (1)

Application Number Title Priority Date Filing Date
FR597615D Expired FR597615A (en) 1925-01-17 1925-01-17 Calculating device for instruction

Country Status (1)

Country Link
FR (1) FR597615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713009A (en) * 1986-06-11 1987-12-15 Henry Borenson Teaching apparatus and method for solving algebraic linear equations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713009A (en) * 1986-06-11 1987-12-15 Henry Borenson Teaching apparatus and method for solving algebraic linear equations

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